It is a contradictory question, and everybody can answer it only on their own. If you don't consider something valuable, you just shouldn't buy it, otherwise it will be a waste of money. Some collectors really see value in such digital pictures and nobody can object as everyone has their own idea of beauty and value. Personally I don’t invest in NFT-art, because I don’t find them very attractive. Especially such works like crypto punks.
We actually have the same stand on NFT though I have a slightly different take on NFT gaming. usually, like Bitcoin we are considering it not just as money or currency but also as a store of value...am thinking that maybe NFT most especially images can be considered as a store of value as well. And we also have to remember that the concept of currency can be different from one person to another...in the old economy anything considered as valuable can be traded and therefore can be used just like money. But honestly, I could not find any value while looking at those cryptopunks or even digitalized art for that matter...what is valuable to me is the real thing...though this concept of what is real is being challenged everyday. Whew...things can really be confusing sometimes in NFT.